Grading scale

Some students have been asking how the grading scale was determined for the class. It is based on the UW grading system ( here is the link). Below is the scale from the website:

Letter	Number	Note
A	4.0-3.9
A-	3.8-3.5
B+	3.4-3.2
B	3.1-2.9
B-	2.8-2.5
C+	2.4-2.2
C	2.1-1.9
C-	1.8-1.5
D+	1.4-1.2
D	1.1-0.9
D-	0.8-0.7	Lowest passing grade.
E	0.0	Academic failure. No credit earned.